Home / 283,385.64-391,089.97-156,061.23

Finding the Fourth Proportional to 283,385.64, 391,089.97 and 156,061.23

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Solution

The fourth proportional to 283,385.64, 391,089.97 and 156,061.23 is: 215,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,385.64 : 391,089.97 = 156,061.23 : x
  2. Step 2: Convert to fraction form
    283,385.64/391,089.97 = 156,061.23/x
  3. Step 3: Cross multiply
    283,385.64x = 391,089.97 × 156,061.23
  4. Step 4: Simplify right side
    283,385.64x = 61,033,982,687.23
  5. Step 5: Solve for x
    x = 61,033,982,687.23/283,385.64
  6. Step 6: Final answer
    x = 215,374.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.